47-55.1 Inside cab rear corners

[Thadious]

So, yesterday, I was out doing a bit of wrecking yard searching for some parts and came across an early 47 cab. A good portion of the front end of it had seen long since better days, but the one thing that I found, peaked my interest...

It was those tall rounded inside corners. The ones that extend from the seamline under the corner windows, down to the floor and almost look like they have opening rolled inward designed to fit a 6x9 speaker. LOL.

Has anyone ever seen a repop of one of these (not the squared off ones that LS Fab sells) or had any experience removing them? Of course they are spot welded into place, but are the tops and bottoms welded or just the sides? I'm considering going back to remove them for my build. Also, the three supports from the floor up to the seamline are much beefier than those of the later years.